Improvement in automatic lighters for gas-burners



" H. B STDGKWE LL &. E. L MEGl-LL.

7 (Automatic Lighter s for Gas-Burners. No.l55,770.

Patented Oct. 6,1874.

UNITED STAT PATENT QFFICE;

HENRY B. sTooKwELL AND EDWARD L. MEGILL, 0F BROOKLYN, NEW

YORK, ASSIGNOBS TO WILLIAM G. MORGAN, OF SAME PLACE.

IMPROVEMENT IN AUTOMATIC LIGHTERS FOR GAS- BURNERS.

Specification forming part of Letters Patent No. 155,770, dated October6, 1874; application filed September 15, 1874.

To all whom it may concern:

Be it known that we, HENRY B. STOCK- WELL and EDWARD L. ll/IEGILL, bothof Brooklyn, in the county of Kings and State of New York, have inventedan Improvement in Automatic Lighting Attachments to Gas- Burners, ofwhich the following is a specification:

Our invention relates to improvements upon and has the same object asthe invention for which Letters Patent were granted on the 27th day ofJune, 1865, to Henry B. Stockwell, of Brooklyn, New York.

The object of the invention is to obtain an apparatus which is morecertain and reliable in its action than the apparatus which forms partof the subject-matter of those Letters Patent.

fulminate; also, in means of moving said rib bon by the action of theburner-cock.

The following is a description of our invention, reference being had tothe accompanying drawing, in which similar letters indicatecorresponding parts in the several figures.

Figure 1 is a side view, showing our attachment applied to a gas-burnerwith the magazine removed, and with a vertical section of theribbon-guide, thus showing the mechanism of the apparatus, andrepresenting the same in the position occupied when the gas is on. Fig.2 is also a side view, representing the apparatus complete with thelower lefthand portion of magazine-cap broken away, showin g the workingparts in dotted outlines, and showing the same in the position while thegas is being turned on and just before the fall of the hammer. Fig. 3isa view at right angles to Figs. 1 and 2, showing partial verticalsection of apparatus. Fig. 4 is a piece of percussion or priming ribbonprovided with pellets of fulminate i A is the socket, and B the key, ofa gascock, the former being tapped or internally threaded at the bottomsuitably for screwing upon a gas-pipe, and having a screw at 1), uponwhich is screwed the gas-burner G. d is a swinging hammer, pivoted at oto the socket A, and operated by the force of the spring 6, which isalso attached to the socket A. f is a cam, rigidly attached to andrevolving with the key orspindle of the gas-cock. g is a box ormagazine, secured to the socket A, and in which is coiled thepercussion-ribbon'w. h h are toothed wheels, over which thepercussionribbon passes, and which are rigidly attached to the key B ofthe cock, concentric therewith, by means of the screw 3 which holds thekey in. place. The rotation of these wheels feeds the ribbon or forwardwith each half-revolution of the cook a distance equal to that betweenthe percussion-pellets z i, Fig. 4. Opposite to the said wheels aregrooves s s in the cover or wall of the magazine, that the teeth of saidwheels may penetrate and bite the ribbon. k is a tube or guide attachedto the magazine g, and through which the percussion-ribbon is fed upwardby the rotation of the toothed wheel or feeder h. The side of this guideopposite the hammer projects above the other side at 1, thus forming ananvil against which the ribbon is struck by the hammer-edge m. n is ashield, partially surrounding the hammer-edge on the side opposite thegas-jet, by which the flame of the explosion is prevented fromdiffusing, and is directed toward the gas. From the form of the cam f itis prevented by the dog 0 upon the hammer from rotating, except in thedirection of the arrow in Fig. 1. When the cam is rotated till it passesthe point p, the dog 0 slips off the point, allowing the hammer to fallpartially, thus making a click, which indicates that the gas is fullyturned off. The cam being carried one-quarter of a revolution farther,the dog 0 is raised by the highest step f of the cam, which it passesjust as the gas is fully turned on, and the hammer falls, exploding oneof the percussion-pellets against the anvil l, and the shield at directsthe flame of the explosion into the gas-jet, thus igniting the same. Theignition of the percussion-pellets causes the burning Off of the ribbondown to the mouth or upper end of the tube 75.

The application of this attachment to the burner may be so modified asto work with a coekthe key of which is vertical, the motion beingtransmitted from the cock to the ribbonfeeding device by gearing orotherwise.

We claim- 1. The combination of the magazine 9, conducting-tube k, anvill, swinging hammer d,

spring 0, cam f, cock A, and. burner 0, sub stantiaily as hereindescribed.

2. The feeding-wheel h, in combination with the gas-cock and theribbon-magazine, substantially as herein described.

